克尔双周期PT对称光晶格中的空间光孤子  

Spatial solitons in Kerr dual-periodic PT symmetric optical lattices

作　　者：林洽武[1] 谢庆文[1] 罗质华[1] 石智伟[2] 李华刚[1] 

机构地区：[1]广东第二师范学院物理系,广东广州510303 [2]广东工业大学信息工程学院,广东广州510006

出　　处：《量子电子学报》2014年第4期507-512,共6页Chinese Journal of Quantum Electronics

基　　金：中国博士后科学基金(2013M531822);广东省自然科学基金(S2012040007188)资助课题

摘　　要：数值研究了克尔双周期宇称一时间(Parity-time,PT)对称光晶格中能存在的空间光孤子,通过平面波展开法详细研究了此光晶格的带隙结构并获得其相变点。数值研究了此光晶格中能存在的空间光孤子及其传播稳定性,数值结果显示位于不同周期波导上的空间光孤子其稳定性区间不同。Spatial solitons were numerically studied in Kerr dual-periodic parity-time（PT） symmetric optical lattices. The bandgap structures of this optical lattices were obtained by using plane wave expansion method, and the phase transition point was obtained at the same time. The existence and stability of the spatial solitons were numerically studied in this optical lattices. The results showed that the stable range of the solitons located on different period waveguide is different.

关 键 词：非线性光学 克尔介质 宇称-时间对称光晶格 空间光孤子 稳定性 

分 类 号：O437[机械工程—光学工程]